Applicator



y 1937. M. c. SHIRLEY 2,086,580

' APPLICATOR Filed June 24, 1955 Patented July 13, 1937 NT OFFICEAPPLICATOR Myron 0. Shirley, Hollywood, Calif. Application June 24,1935,'Serial No. 28,193 4 Claims. (o1; 128 234) This invention is anapplicator whereby medicinesin the form .of pellets may be applied tothe cavities and channels of the human body without requiring theservices of a physician or surgeon and without inflicting pain orpossible injury upon the patient. It is an object of the invention toprovide an applicator of very simple and inexpensive construction andwhich will be so constructed that at each operation a single pellet willbe deposited in the cavity and held by the tissues lining the samewhereby the medicine will be applied directly to the diseased parts. Theinvention is illustrated in the accompanying drawing and will behereinafter first fully described and then more particularly defined inthe appended claims.

In the drawing:

Figure 1 is a longitudinal section of an applicator embodying thepresent invention.

Figure 21s a transverse section on the line 2-2 of Figure 1.

Figure 3 is a transverse section on the line 3-3 of Figure 1.

In carrying out the invention, there is provided a tubular shellconsisting of a forward tube I and a rear tube 2, the forward tube beingtapered in its forward portion, as shown at 3, whereby it may readilypass the mouth of the cavity without inflicting any pain. This forwardtube l is externally threaded at its rear end to engage internal threadsat the forward end of the rear tube 2 whereby the two tubes will befirmly united but may be readily separated when cleaning or reloading ofthe tube is desired. The rear tube is provided near its front end withan internal flange 4 and a nut 5 is fitted in the end of the tube inadvance of said flange and is clamped firmly against the flange by theend of the tube I and held against rotation by a screw 5, as will bereadily understood upon reference to Figure 1. The nut 5 has a coarsethread and a corresponding threaded rod or plunger 6 is engaged throughthe nut and may have a piston or plunger head 1 swiveled upon itsforward end or have its forward end portion extended to form a headintegral with the plunger. Within the front tube l is an inner tube 8,the inner diameter of which is such that pellets, indicated at 9, may beheld therein but will be free to move along the inner tube when force isapplied thereto through the plunger 6 and the plunger head 1. The innertube preferably constitutes the container or cartridge in which thepellets are packed by the manufacturer and will be discarded when a newtube of pellets is to be inserted. The front end at IU, so that as apellet is forced through the open end of the tube it will be partlycrushed and will, therefore, more readily dissolve when it is depositedupon the tissue to which it is applied. The threaded plunger rod 6 isprovided at its rear end with a head or flange II which is'preferablyintegral with the rod and is provided with diametrically oppositeopenings I2 therethrough spaced apart a greater distance than thediameter of the rod. A knob or 'disc I3 is provided at the rear end ofthe rear tube 2 and has secured therein diametrically opposite rods Mwhich pass through the openings l2 in the flange II and are properlyproportioned to permit said flange to slide readily along the rods. Thetube 2 is provided adjacent its rear end with a socket l5 formed byproviding an opening in the side wall of the tube, and a ball or globeI6 is adapted to seat in said socket but can not pass outwardly entirelythrough the opening as the diameter of the opening is less than thegreatest diameter of the ball. The ball or globe I6 bears against oneend of a helical spring I1 mounted in a pocket I8 extendingdiametrically of the shank of the knob l3 from a side thereof and as thespring is compressed when the shank of the knob is forced into the rearend portion of the tube 2, it will urge the ball outwardly into positionto engage in the seat l5 and yieldably resist turning of the knob. .Aset screw l9 carried by the tube 2 and engaged in a circumferentiallyextending groove in the shank of the knob prevents the knob fromslipping rearwardly out of its proper position but when the screw isremoved the knob and rods I4 can be withdrawn and thoroughly cleaned andsterilized.

The device is intended to contain thirty tablets and the screw threadson the plunger rod and in the nut will have such a pitch that onecomplete turn of the knob I3 will feed one pellet through the innertube. It will thus be seen that the pellets may be fed successively byrepeated turns of the knob until the supply is exhausted. The front tubeI may then be rotated so that it may ride out upon its threadedconnection with the rear tube and access thereby gained to the rear endof the front tube I. The empty cartridges can then be withdrawn, afilled one set in place, and the parts returned to their operativerelation, shown in Figure 1. When the knob 13 is turned, the ball [6will ride out of the socket l5, and when the knob has been given acomplete turn, the ball will again seat in the socket where it will lockthe knob against moveof the inner tube is slightly contracted, as shown.1. An applicator .a' magazine for pellets in the forward portion mentunless sufficient force is supplied to overcome the resilient frictionalengagement of the ball in the socket. When the ball springs intoengagement with the socket, a clicking sound will be heard so that theoperator will know that the pellet has been discharged and may thenwithdraw the instrument without further turning of the knob. As the knobis turned, the rods M will, of course, be turned therewith and willimpart rotation to the flange H and the plunger so that the plungerwill, by its engagement with the nut 5, be fed forward to discharge thepellet. When all of the pellets have been discharged, the knob is turnedin the reverse direction so as to withdraw the plunger to its initialposition.

It will be readily noted that I have provided a very simple structurewhich may be easily manipulated and will not require expert service.Having thus described the invention, what is claimed as new is:

comprising a tubular shell,

of the shell, a nut secured in the shell at the rear of the magazine, aplunger fitted in the magazine, a plunger rod threaded through the nutand swiveled to the plunger, a flange at the rear end .of the plungerrod, a rotatable handle at the rear end of the shell, and turning pinscarried by said handle and fitted slidably through the flange on theplunger rod.

2. d An applicator comprising a tubular shell, a magazine for pellets inthe forward portion of the shell, a nut secured in the shell at the rearof the magazine, a plunger fitted in the magazine, a plunger rodthreaded through the nut and swiveled to the plunger, a flange at therear end of the plunger rod, a rotatable handle at the rear end of theshell, turning pins carried by said handle and fitted slidably throughthe flange on the plunger rod, the shell being provided with an internalsocket near its rear end, and a resilient detent secured to the handlewithin the shell and adapted to seat in said socket to releasably holdthe handle against turning in the shell.

3. An applicator comprising, a tubular shell, a nut secured in theshelLa plunger rod threaded through the nut and having a flange at itsrear end, an actuating member rotatably mounted at the rear end of saidshell, and turning pins carried by said actuating member and extendingfrom the inner end thereof longitudinally in the shell and slidablyengaged through the flange of the plunger rod. I

4. An applicator comprising a tubular shell open at its front end, a nutsecured in the shell, a plunger, a plunger rod threaded through the nutand having its front end swiveled to said plunger, a flange at therearend of the plunger rod formed with openings, arotatable actuatingmember at the rear end of the shell, turning pins carried by saidactuating member and extending from the inner end thereof longitudinallyin the shell and slidablyengaged through the openings of said flange,said shell being provided with an internal socket adjacent its rear end,and a resilient detent carried by said turning member within the shelland adapted to seat in said socket to releasably hold the actuatingmember against turning in the shell. g .1

. MYRON C. SHIRLEY.-

